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- W2940897994 abstract "Applying hydrogen energy into iron ore sintering process is an efficient strategy to abate CO2 emission. This investigation mainly focused on revealing the influence of H2-rich gas injection on sintering performance and elucidating the deep mechanism through both laboratory tests and mathematical model. Results showed that injecting H2-rich gas contributed to reducing the proper moisture content and coke breeze rate from 7.00% and 5.60% to 6.75% and 5.30% due to the negative influence of generated H2O and excessive heat supply. Under main operation conditions, increasing the injection concentration of H2-rich gas improved the sinter yield and tumbler index gradually till reaching the proper concentration of 0.80%. The emission reduction of NO and SO2 mainly brought by the decreased coke breeze consumption reached around 10% and 6%. The mechanism of H2-rich gas injection was mainly attributed to the improved thermal patterns of sintering bed, which increased liquid phase formation area and high temperature (≥1200 °C) duration, thereby facilitating the formation of enough adhesive phase calcium ferrite. Moreover, the cooling velocity of adhesive minerals was obviously slowed down, which facilitated the formation of needle-like calcium ferrite with high mechanical strength. The research findings are of great significance for guiding the application of cost-effective H2-rich gas into practical sintering plants." @default.
- W2940897994 created "2019-05-03" @default.
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- W2940897994 date "2019-07-01" @default.
- W2940897994 modified "2023-10-18" @default.
- W2940897994 title "Investigation into the characteristics of H2-rich gas injection over iron ore sintering process: Experiment and modelling" @default.
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- W2940897994 doi "https://doi.org/10.1016/j.applthermaleng.2019.04.119" @default.
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